Poa nemoralis L.,Sp. Pl. 1: 67 1753.

Soreng, Robert J. & Peterson, Paul M., 2012, Revision of Poa L. (Poaceae, Pooideae, Poeae, Poinae) in Mexico: new records, re-evaluation of P. ruprechtii, and two new species, P. palmeri and P. wendtii, PhytoKeys 15, pp. 1-104 : 69

Poa nemoralis L.,Sp. Pl. 1: 67 1753.

Discussion.

This species was reported by Dávila Aranda et al. (2006) from Coahuila, Mexico, and has not been verified by us.The basis of this report is unknown to Jesus Valdes-Reyna (pers. comm. 2012, a coauthor of the Dávila Aranda et al. 2006 account, who is working on a revision of grasses of Coahuila). We guess that this reference resulted from confusion with the name Agrostis alba L., the type of which is Poa nemoralis . The accepted name for material traditionally treated as Agrostis alba (sensu auct.) is Agrostis gigantea Roth. This is clearly the case for a separate report for Durango: See A.Benitez 1725 (CIIDIR) in GBIF (http://data.gbif.org/occurrences/370590415/), mapped for Durango as Poa nemoralis , but cited under Agrostis alba L. by Herrera-Arrieta (2001). Poa nemoralis , is cool-temperate woodland species of Poa sect. Stenopoa Dumort., native to Eurasia and introduced in Canada, USA (mostly in the northeast), sporadically in Patagonian South America, and in Guatemala (M.E.deKoninck s.n., ISC-212372!).